/**
* Check if the current user has associated his or her Facebook profile with his or her WordPress account
* If the current user can edit posts and has not authorized Facebook then show a prompt encouraging action.
*
* @since 1.1
*/
public static function connect_facebook_account($verify_permissions = null)
{
global $facebook;
$profile_prompt = false;
// check for permission to publish Open Graph action (publish article)
// check for the superset permission: publish_stream
if (!is_array($verify_permissions)) {
$profile_prompt = true;
$verify_permissions = array('publish_actions', 'publish_stream');
}
$current_user = wp_get_current_user();
// no need to alert if he cannot create a post
if (!user_can($current_user, 'edit_posts')) {
return;
}
if (!class_exists('Facebook_User')) {
require_once dirname(__FILE__) . '/facebook-user.php';
}
$facebook_user_data_exists = false;
$facebook_user_data = Facebook_User::get_user_meta($current_user->ID, 'fb_data', true);
if (is_array($facebook_user_data) && isset($facebook_user_data['fb_uid'])) {
if (empty($verify_permissions)) {
return;
}
$facebook_user_data_exists = true;
}
// Facebook information not found
$facebook_user = Facebook_User::get_current_user(array('id', 'username'));
if ($facebook_user) {
$permissions = $facebook->get_current_user_permissions($facebook_user);
$all_permissions_exist = true;
foreach ($verify_permissions as $permission_to_verify) {
if (!isset($permissions[$permission_to_verify])) {
$all_permissions_exist = false;
break;
}
}
if ($all_permissions_exist) {
if (!$facebook_user_data_exists || $facebook_user_data['fb_uid'] != $facebook_user['id']) {
$facebook_user_data = array('fb_uid' => $facebook_user['id'], 'activation_time' => time());
if (!empty($facebook_user['username'])) {
$facebook_user_data['username'] = $facebook_user['username'];
}
Facebook_User::update_user_meta($current_user->ID, 'fb_data', $facebook_user_data);
}
return;
}
}
// priority before js sdk registration needed to add JS inside FbAsyncInit
add_action('admin_enqueue_scripts', array('Facebook_Admin_Login', 'add_async_load_javascript_filter'), -1, 0);
// add all others at P11 after scripts registered
add_action('admin_enqueue_scripts', array('Facebook_Admin_Login', 'enqueue_scripts'), 11);
if ($profile_prompt) {
add_action('admin_notices', array('Facebook_Admin_Login', 'admin_notice'), 1, 0);
}
// up top
}
/**
* Save custom user information
*
* @since 1.2
* @param int $wordpress_user_id WordPress user identifier
*/
public static function save_data($wordpress_user_id)
{
remove_filter('user_contactmethods', array('Facebook_User_Profile', 'user_contactmethods'), 1, 2);
if (!($wordpress_user_id && current_user_can('edit_user', $wordpress_user_id))) {
return;
}
if (isset($_POST['facebook_timeline']) && $_POST['facebook_timeline'] == '1') {
if (!class_exists('Facebook_User')) {
require_once dirname(dirname(__FILE__)) . '/facebook-user.php';
}
Facebook_User::delete_user_meta($wordpress_user_id, 'facebook_timeline_disabled');
// delete if stored
} else {
if (!class_exists('Facebook_User')) {
require_once dirname(dirname(__FILE__)) . '/facebook-user.php';
}
Facebook_User::update_user_meta($wordpress_user_id, 'facebook_timeline_disabled', '1');
}
}
/**
* Provides the implementations of the inherited abstract
* methods. The implementation uses user meta to maintain
* a store for authorization codes, user ids, CSRF states, and
* access tokens.
*/
protected function setPersistentData($key, $value)
{
if (!in_array($key, self::$kSupportedKeys)) {
self::errorLog('Unsupported key passed to setPersistentData.');
return;
}
// load user functions
if (!class_exists('Facebook_User')) {
require_once dirname(dirname(dirname(__FILE__))) . '/facebook-user.php';
}
Facebook_User::update_user_meta(get_current_user_id(), $key, $value);
}
/**
* Save custom user information.
*
* @since 1.2
*
* @uses current_user_can() current user must be able to edit the passed WordPress user ID
* @param int $wordpress_user_id WordPress user identifier
* @return void
*/
public static function save_data($wordpress_user_id)
{
if (!($wordpress_user_id && current_user_can('edit_user', $wordpress_user_id))) {
return;
}
// allow decoupling of a WordPress account and a Facebook account
if (isset($_POST['facebook_remove'])) {
// WordPress Facebook User helper functions
if (!class_exists('Facebook_User')) {
require_once dirname(dirname(__FILE__)) . '/facebook-user.php';
}
$facebook_user_id = Facebook_User::get_facebook_profile_id($wordpress_user_id);
if ($facebook_user_id) {
// delete mapped FBID and other data
Facebook_User::delete_user_meta($wordpress_user_id, 'fb_data');
// delete post to Timeline opt-in if stored
Facebook_User::delete_user_meta($wordpress_user_id, 'facebook_timeline_disabled');
// Load WP HTTP helpers
if (!class_exists('Facebook_WP_Extend')) {
require_once dirname(dirname(__FILE__)) . '/includes/facebook-php-sdk/class-facebook-wp.php';
}
// Revoke connection to app and all permissions
Facebook_WP_Extend::graph_api_with_app_access_token($facebook_user_id . '/permissions', 'DELETE');
}
unset($facebook_user_id);
// no need to store any other Facebook data
return;
}
if (isset($_POST['facebook_fbid']) && ctype_digit($_POST['facebook_fbid'])) {
// WordPress Facebook User helper functions
if (!class_exists('Facebook_User')) {
require_once dirname(dirname(__FILE__)) . '/facebook-user.php';
}
try {
$facebook_user = Facebook_User::get_facebook_user($_POST['facebook_fbid'], array('fields' => array('id', 'username', 'link', 'third_party_id')));
if (isset($facebook_user['id'])) {
$facebook_user_data = array('fb_uid' => $facebook_user['id'], 'activation_time' => time());
if (!empty($facebook_user['username'])) {
$facebook_user_data['username'] = $facebook_user['username'];
}
if (!empty($facebook_user['link'])) {
$facebook_user_data['link'] = $facebook_user['link'];
}
if (!empty($facebook_user['third_party_id'])) {
$facebook_user_data['third_party_id'] = $facebook_user['third_party_id'];
}
Facebook_User::update_user_meta($wordpress_user_id, 'fb_data', $facebook_user_data);
unset($facebook_user_data);
}
unset($facebook_user);
} catch (Exception $e) {
}
}
if (isset($_POST['facebook_timeline']) && $_POST['facebook_timeline'] == '1') {
// WordPress Facebook User helper functions
if (!class_exists('Facebook_User')) {
require_once dirname(dirname(__FILE__)) . '/facebook-user.php';
}
Facebook_User::delete_user_meta($wordpress_user_id, 'facebook_timeline_disabled');
// delete if stored
} else {
// WordPress Facebook User helper functions
if (!class_exists('Facebook_User')) {
require_once dirname(dirname(__FILE__)) . '/facebook-user.php';
}
Facebook_User::update_user_meta($wordpress_user_id, 'facebook_timeline_disabled', '1');
}
}
/**
* Set the appropriate settings for each form component
*
* @since 1.1
* @param array $options social publisher options
* @return array clean option sets.
*/
public static function sanitize_publish_options($options)
{
global $facebook;
if (!is_array($options) || empty($options)) {
return array();
}
if (!class_exists('Facebook_User')) {
require_once dirname(dirname(__FILE__)) . '/facebook-user.php';
}
// publish to timeline is really a per-user setting, not a per-site setting
// handle the special user case
$user_meta_key = 'facebook_timeline_disabled';
$current_user = wp_get_current_user();
if (isset($options['author_timeline']) && $options['author_timeline'] == 1) {
Facebook_User::delete_user_meta($current_user->ID, $user_meta_key);
} else {
Facebook_User::update_user_meta($current_user->ID, $user_meta_key, '1');
}
// is a new page chosen?
// if the same page selected on new_page_timeline as currently stored don't overwrite the access token
// it is possible multiple users can create content from the page but should not overwrite each other when editing the page without changing the target page
if (isset($options['new_page_timeline'])) {
$page_id = trim($options['new_page_timeline']);
if (!$page_id && isset($options['page_timeline']['id'])) {
delete_option(self::OPTION_PUBLISH_TO_PAGE);
} else {
if ($page_id && !(isset($options['page_timeline']['id']) && $options['page_timeline']['id'] == $options['new_page_timeline'])) {
$pages_for_current_user = self::get_publishable_pages_for_current_user();
foreach ($pages_for_current_user as $page) {
if (isset($page['id']) && $page['id'] === $page_id) {
self::update_publish_to_page($page);
break;
}
}
}
}
}
return false;
}